121020022044 has 18 divisors (see below), whose sum is σ = 305911722480. Its totient is φ = 40340007336.

The previous prime is 121020022043. The next prime is 121020022087. The reversal of 121020022044 is 440220020121.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020022043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1680833604 + ... + 1680833675.

Almost surely, 2^121020022044 is an apocalyptic number.

It is an amenable number.

121020022044 is an abundant number, since it is smaller than the sum of its proper divisors (184891700436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121020022044 is a wasteful number, since it uses less digits than its factorization.

121020022044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361667289 (or 3361667284 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 121020022044 its reverse (440220020121), we get a palindrome (561240042165).

The spelling of 121020022044 in words is "one hundred twenty-one billion, twenty million, twenty-two thousand, forty-four".